KR101575884B1 - Acid resistant resin composition and the coating method of the floor using the same - Google Patents
Acid resistant resin composition and the coating method of the floor using the same Download PDFInfo
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- KR101575884B1 KR101575884B1 KR1020140035585A KR20140035585A KR101575884B1 KR 101575884 B1 KR101575884 B1 KR 101575884B1 KR 1020140035585 A KR1020140035585 A KR 1020140035585A KR 20140035585 A KR20140035585 A KR 20140035585A KR 101575884 B1 KR101575884 B1 KR 101575884B1
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Abstract
The present invention relates to an acid-resistant resin composition and a floor coating method using the same. More specifically, the present invention relates to an epoxy resin composition comprising 15 to 50% by weight of a bisphenol F epoxy resin, 15 to 40% by weight of a phenol novolac epoxy resin, 10 to 15% by weight of a 1,3-bis (aminomethyl) cyclohexane curing agent And 20 to 50% by weight of a reactive diluent is applied to a bottom or a contact surface of a place where a large amount of acid is used, such as a laboratory or a school laboratory, thereby improving the acid resistance and chemical resistance.
Description
The present invention relates to an acid-resistant resin composition and a floor coating method using the acid-resistant resin composition. More particularly, the present invention relates to an acid-resistant resin composition and a floor coating method using the acid- And a floor coating method using the same.
In a facility where strong acids such as sulfuric acid or hydrochloric acid are mainly used, the floor or the surface to which the chemical can come into contact with the chemical may corrode. Therefore, an epoxy resin composition having an acid resistance in view of protection by the above chemicals is coated and protected.
This can be accomplished through three coatings on the surface, which can be divided into sub-operations, intermediate operations and top operations. The priming can be performed by arranging the surface and applying the primer. In the middle working, it is confirmed that the primer applied in the above-mentioned priming work is hardened, and the primer is mixed according to the compounding ratio of the primer and the hardener. . And finally, the top coat operation refers to coating in the same manner as the intermediate operation once the composition painted in the intermediate operation is cured.
An epoxy resin composition having an acid resistance can be used in a middle or top working stage. It was found that when applied to a place where a large amount of acid was used through a resin composition used in the past, it was vulnerable to corrosion. For example, in places such as laboratories or school laboratories, there were instances where they were often vulnerable to corrosion.
Accordingly, the present invention provides a resin composition comprising a bisphenol F epoxy resin, a phenol novolac epoxy resin, a 1,3-bis (aminomethyl) cyclohexane curing agent, and a reactive diluent in the bottom of a factory handling an acidic material, The present invention has been accomplished on the basis of this finding.
Accordingly, an aspect of the present invention is to provide an acid-resistant resin composition capable of improving acid resistance and chemical resistance at a place where a large amount of acid is used, and a floor coating method using the same.
The acid-resistant resin composition for achieving the above-mentioned viewpoints comprises: 15 to 50% by weight of a bisphenol F-based epoxy resin; 15 to 40% by weight of a phenol novolak epoxy resin; 10 to 15% by weight of a 1,3-bis (aminomethyl) cyclohexane curing agent; And from 20 to 50% by weight of a reactive diluent.
According to one embodiment, the bisphenol F epoxy resin may have an equivalent weight of 150 to 190 g / eq and the phenol novolak epoxy resin may have an equivalent weight of 160 to 180 g / eq.
According to another embodiment, the bisphenol F epoxy resin may have a viscosity of 10,000 to 20,000 cps and a specific gravity of 1.15 to 1.29.
According to another embodiment, the amine value of the curing agent may be 370 to 430 mg KOH / g and the viscosity may be 50 to 250 cps.
According to another embodiment, the reactive diluent is selected from the group consisting of 2-methoxyethanol, acetone, methyl ethyl ketone, cyclohexanone, ethyl acetate, butyl acetate, cellosolve acetate, propylene glycol monomethyl ether acetate, ethylene glycol monobutyl ether acetate , Cellosolve, butyl cellosolve, carbitol, butyl carbitol, xylene, dimethyl formamide, and dimethylacetamide.
According to another embodiment, the resin composition may further comprise at least one curing accelerator selected from the group consisting of a metal-based curing accelerator, an imidazole-based curing accelerator, and an amine-based curing accelerator.
Meanwhile, the floor coating method using the acid-resistant resin composition according to the present invention is a floor coating method comprising the steps of: applying a primer after arranging the bottom surface of a floor, and drying the primer; A first coating step of applying the acid-resistant resin composition according to any one of claims 1 to 6 to the upper part, and an acid-resistant resin coating layer formed in the first coating step are completely dried, And a second coating step of applying the acid-resistant resin composition according to any one of claims 1 to 6.
The acid-resistant resin composition according to one embodiment of the present invention has an effect of improving acid resistance and chemical resistance by applying the acid-resistant resin composition to floors where a large amount of acid is used, such as a plant handling an acidic substance or a laboratory or a school laboratory .
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart schematically showing a floor coating method using an acid-resistant resin composition according to the present invention; FIG.
Before describing the invention in more detail, it is to be understood that the words or words used in the specification and claims are not to be construed in a conventional or dictionary sense, It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the constitution of the embodiments described in the present specification is merely a preferred example of the present invention, and does not represent all the technical ideas of the present invention, so that various equivalents and variations And the like.
Hereinafter, preferred embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.
Acid resistance Resin composition
The acid-resistant resin composition according to one embodiment of the present invention comprises 15 to 50% by weight of a bisphenol F-based epoxy resin, 15 to 40% by weight of a phenol novolac epoxy resin, 10 to 15% by weight of a 1,3-bis (aminomethyl) cyclohexane curing agent % And a reactive diluent in an amount of 20 to 50% by weight.
The acid-resistant resin composition according to one embodiment of the present invention may include a bisphenol F-based epoxy resin having excellent mechanical, electrical and chemical properties to improve the acid resistance.
The bisphenol F epoxy resin may have an equivalent weight of 150 to 190 g / eq, a viscosity of 10,000 to 20,000 cps, and a specific gravity of 1.15 to 1.29.
If the equivalent weight of the bisphenol F epoxy resin is less than 150 g / eq, the mechanical properties may deteriorate, the viscosity may be lowered and the handling property may deteriorate. If the equivalent is more than 190 g / eq, the adhesive strength may be lowered.
If the viscosity is less than 10,000 cps, the mechanical properties may deteriorate and the handling property may deteriorate. If the viscosity exceeds 20,000 cps, the workability may be drastically deteriorated.
The specific gravity of the bisphenol F-based epoxy resin is not particularly limited, but is preferably adjusted to 1.15 to 1.29 in consideration of the reactivity with other compositions and the degree of mixing.
The bisphenol F-based epoxy resin is not particularly limited, but may contain 15 to 50% by weight. If the bisphenol F epoxy resin is less than 15% by weight, it may be difficult to improve the acid resistance of the resin composition. If the bisphenol F epoxy resin is more than 50% by weight, the amount of other components to be added may be decreased.
The acid-resistant resin composition according to one embodiment of the present invention may include a phenol novolak epoxy resin having strong adhesive force, heat resistance and chemical resistance.
The phenol novolac epoxy resin may have an equivalent weight of 160 to 180 g / eq. If the equivalent weight of the phenol novolac epoxy resin is less than 160 g / eq, the mechanical properties may deteriorate, the viscosity may be lowered and the handling property may be deteriorated. If it exceeds 180 g / eq, the adhesive strength may be lowered.
Since the phenol novolac epoxy resin has a large number of functional groups in one molecule, it has strong adhesive force, heat resistance and acid resistance. Therefore, the bisphenol F epoxy resin can be mixed with the bisphenol F epoxy resin to improve the acid resistance and chemical resistance in the composition.
In the resin composition, the phenol novolac epoxy resin is not particularly limited, but may contain 15 to 40% by weight. If the amount of the phenol novolak epoxy resin is less than 15% by weight, it may be difficult to improve the acid resistance. If the amount of the phenol novolak epoxy resin is more than 40% by weight, the amount of other components to be added may be relatively decreased. .
The acid-resistant resin composition according to one embodiment of the present invention may contain a 1,3-bis (aminomethyl) cyclohexane curing agent for smooth curing reaction with the epoxy resin. In addition, a phenol novolak epoxy resin adducted to 1,3-bis (aminomethyl) cyclohexane may be used as a curing agent.
The curing agent is an amine-based curing agent, and particularly excellent in curing reaction upon contact with an epoxy resin, and can be improved in acid resistance, chemical resistance and heat resistance of the resin composition when used as a curing agent. Therefore, the acid-resistant resin composition of the present invention including the above-mentioned curing agent has the effect of improving the acid resistance and chemical resistance by applying the acid to the floor where a large amount of the acid is used, such as a plant handling the acidic substance or a laboratory or a school laboratory have.
In addition, since the curing agent can improve the curing rate and has excellent durability due to the external environment, it can have effects such as resistance to moisture and chemical stability.
The amine value of the curing agent may be 370 to 430 mg KOH / g and the viscosity may be 50 to 250 cps. If the amine value of the curing agent is less than 370 mgKOH / g, the curing reaction rate may decrease and the processability may deteriorate. If the amine value is more than 430 mgKOH / g, the curing agent itself can not perform its role. If the viscosity of the curing agent is less than 50 cps, the curing reaction may not proceed smoothly due to poor mixing with the epoxy resin. If the viscosity exceeds 250 cps, the viscosity of the curing agent may increase, Can fall.
The curing agent is not particularly limited, but may contain 10 to 15% by weight. If the amount of the curing agent is less than 10% by weight, the amount of the epoxy resin to be cured is small, so that the epoxy resin not cured in the composition remains in the composition and handling property may be poor. When the amount is more than 15% by weight, .
The acid-resistant resin composition according to one embodiment of the present invention may include a reactive diluent in consideration of solubility and miscibility.
The reactive diluent may be selected from the group consisting of 2-methoxyethanol, acetone, methyl ethyl ketone, cyclohexanone, ethyl acetate, butyl acetate, cellosolve acetate, propylene glycol monomethyl ether acetate, ethylene glycol monobutyl ether acetate, cellosolve, And may be selected from the group consisting of sorb, carbitol, butyl carbitol, xylene, dimethyl formamide and dimethylacetamide, and is not particularly limited thereto.
The reactive diluent is not particularly limited, but may contain 20 to 50% by weight. If the reactive diluent is less than 20% by weight, it may be difficult to mix the solid epoxy resin. If the reactive diluent is more than 50% by weight, the amount of the other composition to be added may be small.
The acid-resistant resin composition according to one embodiment of the present invention can efficiently cause a curing reaction by selectively containing a curing accelerator.
The curing accelerator may be selected from the group consisting of a metal-based curing accelerator, an imidazole-based curing accelerator, and an amine-based curing accelerator.
The metal-based curing accelerator is not particularly limited, and examples thereof include organometallic complexes or organic metal salts of metals such as cobalt, copper, zinc, iron, nickel, manganese and tin. Specific examples of the organometallic complexes include organic cobalt complexes such as cobalt (II) acetylacetonate and cobalt (III) acetylacetonate, organic copper complexes such as copper (II) acetylacetonate, and zinc (II) Organic iron complexes such as iron (III) acetylacetonate, organic nickel complexes such as nickel (II) acetylacetonate, and organic manganese complexes such as manganese (II) acetylacetonate. Examples of the organometallic salt include zinc octylate, tin octylate, zinc naphthenate, cobalt naphthenate, tin stearate, and zinc stearate. As the metal curing accelerator, cobalt (II) acetylacetonate, cobalt (III) acetylacetonate, zinc (II) acetylacetonate, zinc naphthenate and iron (III) acetylacetonate are suitably used in view of curability and solvent solubility Cobalt (II) acetylacetonate, and zinc naphthenate may be most suitable. Based curing accelerators may be used alone or in combination of two or more.
The imidazole-based curing accelerator is not particularly limited, and examples thereof include 2-methylimidazole, 2-undecylimidazole, 2-heptadecylimidazole, 1,2-dimethylimidazole, 2- Methylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2-methylimidazole, 2-phenylimidazole, Methylimidazole, 1-cyanoethyl-2-undecylimidazole, 1-cyanoethyl-2-ethyl-4-methylimidazole, Cyanoethyl-2-phenylimidazole, 1-cyanoethyl-2-undecylimidazolium trimellitate, 1-cyanoethyl-2-phenylimidazolium trimellitate, 2,4- (1 ')] - ethyl-s-triazine, 2,4-diamino-6- [2'-methylimidazolyl- ] - ethyl-s-triazine, 2,4-diamino-6- [2'-ethyl-4'-methylimidazolyl- (1 ' Amino-6- [2'-methylimidazolyl- (1 ')] - ethyl-s-triazine as isocyanuric acid adduct, 2-phenylimidazole isocyanuric acid adduct, 2-phenyl-4,5-dihydroxymethylimidazole, 2-phenyl-4-methyl-5hydroxymethylimidazole, 2,3- 2-methylimidazolium chloride, 2-methylimidazoline, 2-phenylimidazoline and the like, which are known in the art, such as 1-hydroxy-1 H-pyrrolo [ A thiol compound and an additive of an imidazole compound and an epoxy resin. The imidazole curing accelerator may be used alone or in combination of two or more.
Examples of the amine curing accelerator include, but are not limited to, trialkylamines such as triethylamine and tributylamine, 4-dimethylaminopyridine, benzyldimethylamine, 2,4,6-tris (dimethylaminomethyl) , And amine compounds such as 8-diazabicyclo (5,4,0) -undecene. One or more amine-based curing accelerators may be used in combination.
Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the scope of the present invention is not limited to the following examples.
Example 1
600 g of phenol novolac epoxy resin (YDPN-638, Kuko Chemical) and 800 g of bisphenol F epoxy resin (YDF-170, Kukdo Chemical Co., Ltd.) were added to 1 liter of methyl ethyl ketone (MEK) to prepare a mixture. 200 g of 1,3-bis (aminomethyl) cyclohexane curing agent and 10 g of a curing accelerator 2-ethyl-4-methylimidazole (2E4MZ) were added thereto and thermally cured at a temperature of 200 ° C for 10 minutes to obtain an acid- .
Example 2
700 g of phenol novolac epoxy resin (YDPN-638, Kuko Chemical) and 1 kg of bisphenol F epoxy resin (YDF-170, Kukdo Chemical Co., Ltd.) were added to 1 liter of methyl ethyl ketone (MEK) to prepare a mixture. 200 g of 1,3-bis (aminomethyl) cyclohexane curing agent and 10 g of a curing accelerator 2-ethyl-4-methylimidazole (2E4MZ) were added thereto and thermally cured at a temperature of 200 ° C for 10 minutes to obtain an acid- .
Example 3
600 g of phenol novolak epoxy resin (YDPN-638, Kuko Chemical) and 800 g of bisphenol F epoxy resin (YDF-170, Kukdo Chemical Co., Ltd.) were added to 1 l of dimethylacetamide (DMAc) to prepare a mixture. 200 g of 1,3-bis (aminomethyl) cyclohexane curing agent and 10 g of curing accelerator (DETA, Kukdo Chemical) were added thereto and thermally cured at a temperature of 200 캜 for 10 minutes to prepare an acid resistant resin composition.
Example 4
700 g of phenol novolac epoxy resin (YDPN-638, Kukdo Chemical) and 1 kg of bisphenol F epoxy resin (YDF-170, Kukdo Chemical Co., Ltd.) were added to one liter of dimethylacetamide (DMAc) to prepare a mixture. 200 g of 1,3-bis (aminomethyl) cyclohexane curing agent and 10 g of curing accelerator (DETA, Kukdo Chemical) were added thereto and thermally cured at a temperature of 200 캜 for 10 minutes to prepare an acid resistant resin composition.
Comparative Example 1
700 g of N, N, N ', N'-tetraglycidyl-4,4'-methylenebisbenzenamine type epoxy resin and 500 g of Araldite MY-721 epoxy resin (Huntsman) were added to 1 liter of ethanol solvent, . 200 g of dicyandiimide (DICY) as a curing agent was added thereto and thermally cured at a temperature of 200 캜 for 10 minutes to prepare a resin composition.
The resin compositions prepared in Examples 1 to 4 and Comparative Example 1 were immersed in an acid solution (see Table 1 below) at room temperature (25 ° C) for 168 hours, and then observed for swelling, cracking and peeling.
As can be seen from Table 1, in the tests on the acid resistance and the chemical resistance to which the acid-resistant resin composition prepared in Examples 1 to 4 of the present invention were applied, in an acid solution such as hydrochloric acid, sulfuric acid, nitric acid, It can be seen that the phenomenon of swelling, cracking and chilling does not appear even after the drying. The resin composition prepared in Comparative Example 1 which was conventionally used had a defective phenomenon such as swelling or distortion after immersion in the acid solution. Thus, it can be seen that the acid-resistant resin composition according to one embodiment of the present invention can improve the acid resistance and chemical resistance.
Next, a preferred embodiment of the floor coating construction method using the acid-resistant resin composition according to the present invention will be described in detail with reference to FIG.
As shown in FIG. 1, the bottom coating method includes a primer coating step (S10), a primary coating step (S20) and a secondary coating step (S30). In the primer coating step (S10) Is a process of arranging the bottom surface of a facility which mainly uses strong acid such as sulfuric acid, hydrochloric acid and the like to apply the coating, and then applying and drying the primer.
Next, the primary coating step (S20) relates to a step of applying the above-described acid-resistant resin composition on the primer coating layer formed in the primer coating step (S10), and coating with a brush or roller for uniform application However, it is also possible to use a spraying method.
Next, in the secondary coating step S30, the acid-resistant resin coating layer formed in the first coating step S20 is completely dried, and then the acid-resistant resin composition is coated on the acid-resistant resin coating layer. ). ≪ / RTI >
Accordingly, when the floor coating method of the above-described process is applied, the acid-resistant resin composition according to the present invention having excellent acid resistance and chemical resistance is applied to the floor secondarily, , And when applied to the floor of a place where a large amount of acid is used, it is possible to show an excellent effect.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that it can be modified or improved.
It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
The present invention relates to an acid-resistant resin composition and a floor coating method using the acid-resistant resin composition. More particularly, the present invention relates to an acid-resistant resin composition and a floor coating method using the acid- And a floor coating method using the same.
S10: Primer application step S20: Primary coating step
S30: Second coating step
Claims (7)
15 to 40% by weight of a phenol novolak epoxy resin having an equivalent weight of 160 to 180 g / eq;
10 to 15% by weight of a 1,3-bis (aminomethyl) cyclohexane curing agent having an amine value of 370 to 430 mg KOH / g and a viscosity of 50 to 250 cps;
20 to 50% by weight of a reactive diluent; And
A curing accelerator selected from the group consisting of a metal-based curing accelerator and an imidazole-based curing accelerator,
The reactive diluent may be selected from the group consisting of 2-methoxyethanol, acetone, methyl ethyl ketone, cyclohexanone, ethyl acetate, butyl acetate, cellosolve acetate, propylene glycol monomethyl ether acetate, ethylene glycol monobutyl ether acetate, cellosolve, Wherein the acid-resistant resin composition is at least one selected from the group consisting of sorb, carbitol, butyl carbitol, xylene, dimethyl formamide and dimethylacetamide.
A primer application step of arranging the bottom surface and applying and drying the primer,
A first coating step of applying an acid-resistant resin composition according to claim 1 onto the primer coating layer formed in the primer coating step, and
And a second coating step of coating the acid-resistant resin coating layer formed in the first coating step completely on the top of the coating layer and then applying the acid-resistant resin composition according to the first aspect again on the top of the coating layer. Coating method.
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| KR101674648B1 (en) * | 2016-09-22 | 2016-11-09 | (주) 엘림비엠에스 | Floor coating agent having excellent brightness and hardness and method of manufacturing the same |
| KR101858603B1 (en) * | 2017-12-29 | 2018-05-16 | (주)엘림비엠에스 | Floor coating agent having excellent surface adhesion and hardness, and construction method using the same |
| CN110670843A (en) * | 2019-10-15 | 2020-01-10 | 苏州华亭建设工程有限公司 | Construction method of epoxy resin self-leveling terrace |
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